Lattice configurations in spin-1 Bose–Einstein condensates with the SU(3) spin–orbit coupling

We consider the SU(3) spin–orbit coupled spin-1 Bose–Einstein condensates in a two-dimensional harmonic trap. The competition between the SU(3) spin–orbit coupling and the spin-exchange interaction results in a rich variety of lattice configurations. The ground-state phase diagram spanned by the iso...

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Bibliographic Details
Published inChinese physics B Vol. 29; no. 10; p. 100304
Main Authors Wang, Ji-Guo, Li, Yue-Qing, Dong, Yu-Fei
Format Journal Article
LanguageEnglish
Published 01.10.2020
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ISSN1674-1056
DOI10.1088/1674-1056/abab72

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Summary:We consider the SU(3) spin–orbit coupled spin-1 Bose–Einstein condensates in a two-dimensional harmonic trap. The competition between the SU(3) spin–orbit coupling and the spin-exchange interaction results in a rich variety of lattice configurations. The ground-state phase diagram spanned by the isotropic SU(3) spin–orbit coupling and the spin–spin interaction is presented. Five ground-state phases can be identified on the phase diagram, including the plane wave phase, the stripe phase, the kagome lattice phase, the stripe-honeycomb lattice phase, and the honeycomb hexagonal lattice phase. The system undergoes a sequence of phase transitions from the rectangular lattice phase to the honeycomb hexagonal lattice phase, and to the triangular lattice phase in spin-1 Bose–Einstein condensates with anisotrpic SU(3) spin–orbit coupling.
ISSN:1674-1056
DOI:10.1088/1674-1056/abab72